A Lost Civilizations Panel: Sweatman, Newman, Donnellan, LaCroix @cosmicsummit
A Lost Civilizations Panel: Sweatman, Newman, Donnellan, LaCroix  @cosmicsummit
Uploaded August 2026 | Updated September 2026, 2 weeks ago
George Howard hosts a Cosmic Summit panel bringing together four researchers working across different corners of the same question: Martin Sweatman of the University of Edinburgh, Michael Donnellan of the Atlantica documentary, Matt La Croix of the Missing Key and the Lost Civilisations Database, and Hugh Newman of Megalithomania.

The conversation opens with breaking field updates: Hugh reports fresh excavation activity at Gobekli Tepe's previously untouched northern depression, a newly discovered underground chamber at Karahan Tepe, and an emerging site called Çakmaktepe dated up to 13,000 years old. Michael shares a storm-driven discovery near his home in Cadiz, Spain: winter erosion exposed Upper Paleolithic strata containing human-cut rectangular marks and elephant leg bones in the same layer, matching Plato's description of Atlantis almost exactly, in a region colonised in antiquity by the Greeks.

The central debate runs between Michael and Matt over chronology. Michael argues advanced Paleolithic cave cultures were already sophisticated before the sudden emergence of megalithic architecture. Matt disagrees entirely, arguing humanity underwent a reset following the Pleistocene to Holocene transition, losing capabilities it once possessed rather than gradually developing them. Pressed by George for specifics, Matt lays out a two-chapter timeline: a first age of interconnected civilisation beginning roughly 40,000 years ago, tied to the Sumerian Ziusudra flood tradition and culminating in Atlantis, ending around 11,600 years ago at the Pleistocene-Holocene boundary, followed by a hunter-gatherer reset and a second, distinct re-emergence of megalithic building out of Kish and Uruk in Mesopotamia. Hugh adds his own well-evidenced contribution: Paleolithic cave cultures in France and Spain, traceable to 45,000 years ago, showing genuine astronomical sophistication, carved calendar systems documented by Alexander Marshack, and Venus figurines, evidence he considers solid rather than speculative, alongside Andrew Collins's research connecting the Denisovans to fine craftsmanship.

The panel closes on a shared reflection: physical mechanisms rarely survive cataclysm the way monumental stone does, humanity is living through a genuinely pivotal moment of rediscovery, and Martin, representing the more cautious end of the panel, notes the Younger Dryas impact evidence is nearly proven while evidence for a pre-Younger Dryas civilisation remains, in his view, still unestablished, an invitation for further collaboration Michael and Hugh immediately take up.

CHAPTERS
00:09 Introduction: introducing the panel
04:16 Breaking news from Turkey: Gobekli Tepe, Karahan Tepe, and new sites
12:56 The private origins of archaeology and the return of private funding
15:54 Michael Donnellan: cave systems across Andalucia, Turkey, India, and China
16:33 Matt La Croix challenges the linear progression model
18:07 Hugh Newman on Paleolithic cave culture and the Denisovans
22:52 Michael's discovery: storm-revealed strata, elephant bones, and Plato's coastline
26:32 Matt La Croix lays out his two-chapter megalithic timeline
50:30 Closing reflections: cataclysm, survival, and what endures
52:05 Matt La Croix on humanity's pivotal moment of rediscovery
53:26 Martin Sweatman: what remains proven and what remains open
54:33 Hugh Newman on southeastern Turkey rewriting history
56:53 Closing thoughts and next steps

GUESTS

Martin Sweatman / University of Edinburgh — [amazon.com/Prehistory-Decoded-Martin-Sweatman/dp/178901638X]

Michael Donnellan / Atlantica — [ingeniofilms.com/] @MichaelDonnellanAtlantica

Matt La Croix — [thestageoftime.com/] @MatthewLaCroix

Hugh Newman / Megalithomania — [megalithomania.co.uk/] @MegalithomaniaUK


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TTN News covers the cosmic history that shaped this planet and the deep human past still buried in the ground.

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A Lost Civilizations Panel: Sweatman, Newman, Donnellan, LaCroix

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